uname -a:
Linux ... 2.6.18-238.1.1.el5 #1 SMP Tue Jan 4 13:34:58 EST 2011 i686 i686 i386 GNU/Linux

lsb_release -a:
LSB Version:	:core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID:	RedHatEnterpriseServer
Description:	Red Hat Enterprise Linux Server release 5.9 (Tikanga)
Release:	5.9
Codename:	Tikanga